njrat | e1866b1d507587f81f8ebff326bbd99ca07f17f9d150e8c5e0d45c1e86e7fbef

General

Target
0025d790c45fd64d7c9ef63205e6d0f5_JaffaCakes118.exe
Size 23KB
Sample240425-1peresfe84
SHA256 e1866b1d507587f81f8ebff326bbd99ca07f17f9d150e8c5e0d45c1e86e7fbef
MD5 0025d790c45fd64d7c9ef63205e6d0f5
SHA1 b84df5b4a76200ca58689a8872afa2b88c9a9a66
SHA512 6a28f9d72a1d7b0f993f710142afeae056defd8e82192813327d117617db6473d80a3aeb27027c84c442e35f8a0fde586259f21c1f27bd69d15b3f9c57416be9
SSDEEP 384:hV8aZYC9twBNdcvFaly2H0dbJo6HghcASEJqc/ZmRvR6JZlbw8hqIusZzZ21:hdY+sNKqNHnSdRpcnup
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

njrat evasion persistence trojan

Malware Config

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
4056	netsh.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-355664440-2199602304-1223909400-1000\Control Panel\International\Geo\Nation	0025d790c45fd64d7c9ef63205e6d0f5_JaffaCakes118.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\cc0b7e2c9a12a70fbd68ac4b793eab47.exe	Microsoft.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\cc0b7e2c9a12a70fbd68ac4b793eab47.exe	Microsoft.exe

Executes dropped EXE 1 IoCs

pid	Process
1148	Microsoft.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\cc0b7e2c9a12a70fbd68ac4b793eab47 = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft.exe\" .."	Microsoft.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-355664440-2199602304-1223909400-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cc0b7e2c9a12a70fbd68ac4b793eab47 = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft.exe\" .."	Microsoft.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	1148	Microsoft.exe
Token: 33	1148	Microsoft.exe
Token: SeIncBasePriorityPrivilege	1148	Microsoft.exe
Token: 33	1148	Microsoft.exe
Token: SeIncBasePriorityPrivilege	1148	Microsoft.exe
Token: 33	1148	Microsoft.exe
Token: SeIncBasePriorityPrivilege	1148	Microsoft.exe
Token: 33	1148	Microsoft.exe
Token: SeIncBasePriorityPrivilege	1148	Microsoft.exe
Token: 33	1148	Microsoft.exe
Token: SeIncBasePriorityPrivilege	1148	Microsoft.exe
Token: 33	1148	Microsoft.exe
Token: SeIncBasePriorityPrivilege	1148	Microsoft.exe
Token: 33	1148	Microsoft.exe
Token: SeIncBasePriorityPrivilege	1148	Microsoft.exe
Token: 33	1148	Microsoft.exe
Token: SeIncBasePriorityPrivilege	1148	Microsoft.exe
Token: 33	1148	Microsoft.exe
Token: SeIncBasePriorityPrivilege	1148	Microsoft.exe
Token: 33	1148	Microsoft.exe
Token: SeIncBasePriorityPrivilege	1148	Microsoft.exe
Token: 33	1148	Microsoft.exe
Token: SeIncBasePriorityPrivilege	1148	Microsoft.exe
Token: 33	1148	Microsoft.exe
Token: SeIncBasePriorityPrivilege	1148	Microsoft.exe
Token: 33	1148	Microsoft.exe
Token: SeIncBasePriorityPrivilege	1148	Microsoft.exe
Token: 33	1148	Microsoft.exe
Token: SeIncBasePriorityPrivilege	1148	Microsoft.exe
Token: 33	1148	Microsoft.exe
Token: SeIncBasePriorityPrivilege	1148	Microsoft.exe
Token: 33	1148	Microsoft.exe
Token: SeIncBasePriorityPrivilege	1148	Microsoft.exe
Token: 33	1148	Microsoft.exe
Token: SeIncBasePriorityPrivilege	1148	Microsoft.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4396 wrote to memory of 1148	4396	0025d790c45fd64d7c9ef63205e6d0f5_JaffaCakes118.exe	97
PID 4396 wrote to memory of 1148	4396	0025d790c45fd64d7c9ef63205e6d0f5_JaffaCakes118.exe	97
PID 4396 wrote to memory of 1148	4396	0025d790c45fd64d7c9ef63205e6d0f5_JaffaCakes118.exe	97
PID 1148 wrote to memory of 4056	1148	Microsoft.exe	100
PID 1148 wrote to memory of 4056	1148	Microsoft.exe	100
PID 1148 wrote to memory of 4056	1148	Microsoft.exe	100

C:\Users\Admin\AppData\Local\Temp\0025d790c45fd64d7c9ef63205e6d0f5_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\0025d790c45fd64d7c9ef63205e6d0f5_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4396
- C:\Users\Admin\AppData\Roaming\Microsoft.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1148
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\Microsoft.exe" "Microsoft.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:4056

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

Microsoft.exe

Path C:\Users\Admin\AppData\Roaming\Microsoft.exe
Size 23KB
SHA256 e1866b1d507587f81f8ebff326bbd99ca07f17f9d150e8c5e0d45c1e86e7fbef
MD5 0025d790c45fd64d7c9ef63205e6d0f5
SHA1 b84df5b4a76200ca58689a8872afa2b88c9a9a66
SHA512 6a28f9d72a1d7b0f993f710142afeae056defd8e82192813327d117617db6473d80a3aeb27027c84c442e35f8a0fde586259f21c1f27bd69d15b3f9c57416be9
SSDEEP 384:hV8aZYC9twBNdcvFaly2H0dbJo6HghcASEJqc/ZmRvR6JZlbw8hqIusZzZ21:hdY+sNKqNHnSdRpcnup
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/1148-13-0x0000000074820000-0x0000000074DD1000-memory.dmp

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memory/1148-14-0x0000000001810000-0x0000000001820000-memory.dmp

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memory/1148-15-0x0000000074820000-0x0000000074DD1000-memory.dmp

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memory/1148-17-0x0000000001810000-0x0000000001820000-memory.dmp

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memory/1148-18-0x0000000074820000-0x0000000074DD1000-memory.dmp

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memory/4396-0-0x0000000074820000-0x0000000074DD1000-memory.dmp

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memory/4396-1-0x00000000012F0000-0x0000000001300000-memory.dmp

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memory/4396-2-0x0000000074820000-0x0000000074DD1000-memory.dmp

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memory/4396-12-0x0000000074820000-0x0000000074DD1000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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